{"type": "FeatureCollection", "features": [{"id": "10.1590/s0103-90162008000200014", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-08-25T16:18:26Z", "type": "Journal Article", "created": "2008-04-03", "title": "Growth And Productivity Of Corn As Affected By Mulching And Tillage In Alley Cropping Systems", "description": "<p>Alley cropping has been considered a means of intensifying land use sustainably as an alternative to slash and burn agriculture in tropical regions. An experimental trial was used to evaluating the growth and productivity of corn under alley cropping to test the viability of this system as a sustainable land use practice in an amazonian Ultisol. The experimental layout was a completely randomized block design with four replications of six treatments: mulch with 13.4 and 8.9 t ha-1 of pigeon pea, and a control treatment without mulch of pigeon pea, with or without tillage. Sustainability of soil and crop were determined from changes on physical properties, such as total porosity, air capacity, available water capacity of the soil, net assimilation rate, crop growth rate, and leaf area index, as well as several productivity parameters, including average weight of ears, weight of 100 grains, and total dry matter. Both mulching and tillage increased the air capacity. Mulching of tilled areas protects the soil against the rainfall impact and prevented its recompaction. The reduced air capacity of the soil had a negative impact on the net assimilation rate, resulting in lower productivity in the no-mulch and no-till plots, mainly due to the reduction of grain weight.</p>", "keywords": ["2. Zero hunger", "recompaction", "capacidade de aera\u00e7\u00e3o", "recompacta\u00e7\u00e3o", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "feij\u00e3o guandu", "pigeon pea", "6. Clean water", "air capacity", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1590/s0103-90162008000200014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientia%20Agricola", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0103-90162008000200014", "name": "item", "description": "10.1590/s0103-90162008000200014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0103-90162008000200014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-04-01T00:00:00Z"}}, {"id": "65c50647-b035-43a5-b1aa-1f03c6f8ee2e", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[9.9, 51.98], [9.9, 52.01], [9.96, 52.01], [9.96, 51.98], [9.9, 51.98]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}, {"id": "Top soil"}, {"id": "Subsoil"}, {"id": "soil compaction"}, {"id": "Soil pore system"}, {"id": "Soil porosity"}, {"id": "Soil macropores"}, {"id": "Field capacity"}, {"id": "Wilting point"}, {"id": "Hydraulic conductivity"}, {"id": "agriculture"}, {"id": "Vehicles"}, {"id": "Harvesters"}, {"id": "Tillage"}, {"id": "Conservation tillage"}, {"id": "Conventional tillage"}, {"id": "Ploughing"}, {"id": "management"}, {"id": "Management techniques"}, {"id": "On-farm research"}, {"id": "Field experimentation"}, {"id": "Traffic"}, {"id": "Soil sampling"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Bodenfunktion"}, {"id": "Bodenstruktur"}, {"id": "Physikalische Ver\u00e4nderung"}, {"id": "Bodenwasser"}, {"id": "Bodenschutz"}, {"id": "Bodenuntersuchung"}, {"id": "Probenahme"}, {"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "opendata"}, {"id": "Soil physical parameters"}, {"id": "Soil density"}, {"id": "Dry bulk density"}, {"id": "Soil water content"}, {"id": "Soil deformation"}, {"id": "Soil hydraulic properties"}, {"id": "Soil water retention"}, {"id": "Air capacity"}, {"id": "Plant available water"}, {"id": "Agricultural machineries"}, {"id": "Agricultural management"}, {"id": "Soil management"}, {"id": "Field experiment"}, {"id": "Wheeling experiment"}, {"id": "Field traffic"}, {"id": "Soil conserving traffic"}], "scheme": "individual"}], "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of the BonaRes Module A-Project - SOILAssist's research activities.\" Although every care has been taken in preparing and testing the data, the BonaRes Module A-Project - SOILAssist and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the BonaRes Module A-Project - SOILAssist and the BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes Module A-Project - SOILAssist and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data. The access to this data is restricted during embargo time. If prior access is requested, contact the data owner / author.", "updated": "2023-07-17", "type": "Dataset", "created": "2020-05-13", "language": "eng", "title": "Soil pressure, deformation, and changes in soil physical parameters caused by beet harvester wheeling", "description": "In recent years, agricultural machinery became steadily larger and heavier. Especially under wet soil conditions, when soil is susceptible to compaction, heavy wheel load field traffic can lead to harmful soil compaction. This data set contains soil data from a wheeling experiment with an agricultural vehicle (3-axle sugar beet harvester). The experiment was conducted in 2016 on an agricultural test field in Adenstedt (Hildesheim district, Lower Saxony, Germany). The soil type is Stagnic Luvisol derived from Loess and was tilled with a cultivator up to a depth of 25 cm (reduced tillage). For the wheeling experiment, the harvester passed defined plots in the field with a full bunker (total weight: 62 t) and a half full bunker (total weight: 49 t). Maximum soil pressure and plastic soil deformation evoked by harvester passing was measured simultaneously with a multi-channel device consisting of Bolling probes (Bolling, 1987) and hydrostatic measuring hoses (Nolting et al., 2006). Maximum soil pressure and plastic soil deformation was measured in 20, 35, and 50 cm depth directly below the center of the tires. To investigate changes in soil physical parameters, soil structure, and soil functions caused by harvester driving, undisturbed soil cores (100 cm\u00b3) were taken before (unwheeled) and after wheeling (wheeled). Wheeling variants in the inner field area were sugar beet harvester with half full bunker and full bunker volume driving with all wheels in the same track (3 wheel passes). The wheeling variant of the headland area was sugar beet harvester with full bunker volume and multiple wheel passes in front of the sugar beet clamp. The sampling sites were located both in the inner field area and in the headlands. Two soil pits were sampled per wheeling variant in the inner field area and one soil pit in the headlands. A total of 30 undisturbed soil samples were taken per each soil pit, 10 per each soil depth (20, 35, 50 cm). The soil biopores were counted in every one of the three soil depths. 5 of the 10 undisturbed sampling rings were used to investigate soil water retention and the other 5 for saturated hydraulic conductivity. The determination of pF values was conducted in the soil laboratory using sand and clay boxes as well as pressure pots according to DIN ISO 11274. Saturated hydraulic conductivity was analyzed using a soil water permeameter (open system) according to ISO / FDIS 17312. The soil parameters, total pore volume, air capacity, field capacity, usable field capacity, permanent wilting point, dry bulk density, and current water content during soil sampling were derived from the soil laboratory results.\n\nResearch domain: Soil Sciences", "formats": [{"name": "CSV"}], "keywords": ["Soil", "Top soil", "Subsoil", "soil compaction", "Soil pore system", "Soil porosity", "Soil macropores", "Field capacity", "Wilting point", "Hydraulic conductivity", "agriculture", "Vehicles", "Harvesters", "Tillage", "Conservation tillage", "Conventional tillage", "Ploughing", "management", "Management techniques", "On-farm research", "Field experimentation", "Traffic", "Soil sampling", "Bodenfunktion", "Bodenstruktur", "Physikalische Ver\u00e4nderung", "Bodenwasser", "Bodenschutz", "Bodenuntersuchung", "Probenahme", "Boden", "opendata", "Soil physical parameters", "Soil density", "Dry bulk density", "Soil water content", "Soil deformation", "Soil hydraulic properties", "Soil water retention", "Air capacity", "Plant available water", "Agricultural machineries", "Agricultural management", "Soil management", "Field experiment", "Wheeling experiment", "Field traffic", "Soil conserving traffic"], "contacts": [{"name": "Weise, Maike", "organization": "Th\u00fcnen Institute of Agricultural Technology", "position": "Research associate", "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "maike.weise@thuenen.de"}], "addresses": [{"deliveryPoint": ["Bundesallee 47"], "city": "Braunschweig", "administrativeArea": null, "postalCode": "38116", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Lorenz, Marco", "organization": "Th\u00fcnen Institute of Agricultural Technology", "position": "Research associate", "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "marco.lorenz@thuenen.de"}], "addresses": [{"deliveryPoint": ["Bundesallee 47"], "city": "Braunschweig", "administrativeArea": null, "postalCode": "38116", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Ortmeier, Berthold", "organization": "-", "position": null, "roles": ["other"], "phones": [{"value": null}], "emails": [{"value": "-"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Brunotte, Joachim", "organization": "Th\u00fcnen Institute of Agricultural Technology", "position": "Research associate", "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "joachim.brunotte@thuenen.de"}], "addresses": [{"deliveryPoint": ["Bundesallee 47"], "city": "Braunschweig", "administrativeArea": null, "postalCode": "38116", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Lorenz, Marco", "organization": "Th\u00fcnen Institute of Agricultural Technology", "position": "Research associate", "roles": ["projectManager"], "phones": [{"value": null}], "emails": [{"value": "marco.lorenz@thuenen.de"}], "addresses": [{"deliveryPoint": ["Bundesallee 47"], "city": "Braunschweig", "administrativeArea": null, "postalCode": "38116", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Thomas, Celina", "organization": "Th\u00fcnen Institute of Agricultural Technology", "position": "Research associate", "roles": ["dataCurator"], "phones": [{"value": null}], "emails": [{"value": "celina.thomas@thuenen.de"}], "addresses": [{"deliveryPoint": ["Bundesallee 47"], "city": "Braunschweig", "administrativeArea": null, "postalCode": "38116", "country": "Germany"}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data Analysis & Simulation' - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"organization": "Th\u00fcnen Institute of Agricultural Technology", "roles": ["contributor"]}], "title_alternate": "Changes of soil physical and soil functional parameters caused by driving of a sugar beet harvester on arable land and measuring of soil pressure and soil deformation"}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&mid=65c50647-b035-43a5-b1aa-1f03c6f8ee2e", "rel": "download"}, {"rel": "self", "type": "application/geo+json", "title": "65c50647-b035-43a5-b1aa-1f03c6f8ee2e", "name": "item", "description": "65c50647-b035-43a5-b1aa-1f03c6f8ee2e", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/65c50647-b035-43a5-b1aa-1f03c6f8ee2e"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-17T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Air+capacity&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Air+capacity&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Air+capacity&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Air+capacity&offset=2", "hreflang": "en-US"}], "numberMatched": 2, "numberReturned": 2, "distributedFeatures": [], "timeStamp": "2026-08-26T07:39:37.767211Z"}